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Degradable trace lubricating oil and preparation method thereof

A technology of lubricating oil and lubricating oil composition, applied in the field of lubrication, can solve the problems of environmentally unfriendly sulfur and chlorine-containing additives, affecting the health of operators, processing sites and environmental pollution, etc., achieving excellent biodegradability, Good degradation performance and good biodegradability

Active Publication Date: 2019-05-28
SHANGHAI JINZHAO ENERGY SAVING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The traditional metal cutting process uses mineral oil or vegetable oil or cutting fluid for a large amount of shower lubrication. The amount of lubricant used is large, which not only wastes resources, but also causes huge pollution to the processing site and the environment, and also seriously affects the health of the operators.
[0003] In order to solve these problems, some progress has been made in the recent research on micro-quantity lubrication technology. The micro-quantity lubrication technology solves the above problems such as large amount of lubricant used and serious pollution. At the same time, in order to make the lubricant used in a small amount have relatively strong extreme pressure and anti-wear Sex and lubricity, excessive use of sulfur and chlorine-containing additives that are not friendly to the environment, it is a significant research topic to study a micro-lubricant additive that does not contain sulfur and chlorine and has excellent extreme pressure and anti-wear properties

Method used

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  • Degradable trace lubricating oil and preparation method thereof
  • Degradable trace lubricating oil and preparation method thereof
  • Degradable trace lubricating oil and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Weigh 500g of phosphoric acid with an effective concentration of 20%, and add 250g of chitosan into the reaction kettle together, stir and heat to 160°C, fully react for 4 hours, drain water every 1 hour during the reaction, drain the remaining water after the reaction, add and weigh 250g of lauric acid is heated up to 240°C, stirred and heated for 6 hours, and the moisture generated by the reaction is discharged, which is a lubricating oil composition.

[0025] Weigh 300g of the lubricating oil composition prepared above, 400g of propylene glycol dicaprate, 200g of epoxidized soybean oil, and 100g of organic molybdenum, mix and stir at 40°C until it becomes transparent, then it is a degradable trace lubricating oil.

[0026] The preparation method of the above-mentioned organic molybdenum: Weigh 100g oleamide, 20g molybdic acid, and 20g hydroxyethylethanolamine and mix them at 80°C for 2 hours, then raise the temperature to 120°C and reduce pressure (keep the pressure i...

Embodiment 2

[0028] Take by weighing 333g of phosphoric acid with an effective concentration of 30%, add by weighing 350g of chitosan into the reaction kettle together, stir and heat to 200°C, fully react for 3 hours, drain water every 1 hour in the middle of the reaction, and discharge the remaining water after the reaction, that is It is a lubricating oil composition.

[0029] Weigh 200g of the lubricating oil composition prepared above, 500g of propylene glycol dicaprate, 150g of epoxidized soybean oil, and 150g of organic molybdenum, mix and stir at 50°C until translucent, then it is a degradable trace lubricating oil.

[0030] The preparation method of the above organic molybdenum: Weigh 100g oleamide, 25g molybdic acid, and 15g hydroxyethylethanolamine and mix them at 100°C for 1 hour, then raise the temperature to 110°C and reduce pressure (keep the pressure in the container not greater than 100mmHg) and stir for 3 hours, The brown liquid obtained after filtering the precipitate is ...

Embodiment 3

[0032] Weigh 400g of phosphoric acid with an effective concentration of 25%, and add 300g of chitosan into the reaction kettle together, stir and heat to 180°C, fully react for 3.5 hours, drain water once every 1.5 hours during the reaction, drain the remaining water after the reaction, add the weighed 450g of myristic acid is heated up to 220°C, stirred and heated for 7 hours, and the moisture generated by the reaction is discharged, which is a lubricating oil composition.

[0033] Weigh 250g of the lubricating oil composition prepared above, 450g of propylene glycol dicaprate, 200g of epoxidized soybean oil, and 100g of organic molybdenum, mix and stir at 50°C until it becomes transparent, then it becomes a degradable trace lubricating oil.

[0034] The preparation method of the above-mentioned organic molybdenum: Weigh 100g oleamide, 22g molybdic acid, and 18g hydroxyethylethanolamine, mix them at 90°C for 1.5 hours, then raise the temperature to 112°C and reduce pressure (k...

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Abstract

The invention provides a lubricating oil composition. The lubricating oil composition is characterized by being prepared from chitosan and phosphoric acid, wherein the weight ratio of chitosan to phosphoric acid is (2.5-3.5) to 1; and the lubricating oil composition further contains fatty acid of which the amount is 1-1.5 times the weight of the chitosan. The prepared lubricating oil composition has a good extreme pressure anti-wear property and good anti-rust performance and biodegradability, and can completely or partially replace a traditional anti-wear reagent at extreme pressure containing chlorine, sulfur and phosphorus in the degradable trace lubricating oil, and a small amount of degradable trace lubricating oil can meet the lubrication cooling, extreme pressure anti-wear and anti-rust requirements of metal machining; and with the use of a micro-lubrication device, the use amount of cutting fluid can be saved by more than 95%, and the effects of energy conservation and emissionreduction and environmental protection are remarkable.

Description

technical field [0001] The invention belongs to the technical field of lubrication, and in particular relates to a degradable trace lubricating oil and a preparation method thereof. Background technique [0002] The traditional metal cutting process uses mineral oil or vegetable oil or cutting fluid for a large amount of shower lubrication. The amount of lubricant used is large, which not only wastes resources, but also causes huge pollution to the processing site and the environment, and also seriously affects the health of the operators. . [0003] In order to solve these problems, some progress has been made in the recent research on micro-quantity lubrication technology. The micro-quantity lubrication technology solves the above problems such as large amount of lubricant used and serious pollution. At the same time, in order to make the lubricant used in a small amount have relatively strong extreme pressure and anti-wear Sex and lubricity, excessive use of sulfur- and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/04C10N30/12C10N30/06
Inventor 张乃庆吴启东蒋宁
Owner SHANGHAI JINZHAO ENERGY SAVING TECH
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